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Finding the Fourth Proportional to 2,093.90, 3,138.15 and 995.90

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Solution

The fourth proportional to 2,093.90, 3,138.15 and 995.90 is: 1,492.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,093.90 : 3,138.15 = 995.90 : x
  2. Step 2: Convert to fraction form
    2,093.90/3,138.15 = 995.90/x
  3. Step 3: Cross multiply
    2,093.90x = 3,138.15 × 995.90
  4. Step 4: Simplify right side
    2,093.90x = 3,125,283.59
  5. Step 5: Solve for x
    x = 3,125,283.59/2,093.90
  6. Step 6: Final answer
    x = 1,492.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.